Alkali pulping charactics of moso bamboo (Phyllostachys pubescens Mazel) with various ages

Seung Lak Yoon, Hyun Jin Jo, Byung Su Park, Ha Young Kang, Kyu Young Kang

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

To use bamboo in the pulp industry, the anatomical characteristics of 60-day-old, 1-year-old, 2-year-old, and 3-year-old moso bamboo (Phyllostachys pubescens Mazel), and the characteristics of fiber and sheet of alkali pulp made of moso bamboo were investigated. Moso bamboo is composed of metaxylens and parenchyma cells in the inner part of the wall, and thick-walled small bundle sheathes near the outer walls. Moso bamboo showed the heterogeneity in anatomical structure. The longest fibers were shown in the middle part, and the widest width in the inner part. The lignin contents were 14.4% in 60-day-old bamboo, which was not lignified yet. The lignin contents in bamboo above 1 year were approximately 25%. The yields of alkali pulp of moso bamboo were in the range between 41 and 47%, and the yields tend to decrease with the increase of ages. The lignin contents of 60-day-old bamboo were 2.1% and those of bamboo above 1 year showed approximately 4% to 5% increment. The length, width, and curl index of fiber in alkali pulp appeared to be similar in all ages. However, coarseness increased slightly with the increase of bamboo ages. The distribution of long fiber was shown much in 60-year-old bamboo. The optical and mechanical properties of moso bamboo tended to decrease with the increase of bamboo age.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalPalpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry
Volume38
Issue number3
StatePublished - 2006

Keywords

  • Alkai pulp
  • Bamboo
  • Coarseness
  • Fiber distribution
  • Fiber properties of bamboo
  • Phyllostachys pubescens Mazel

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